Lock



Nov. 6, 1923.

R. s. BONILLA LOCK Filed Feb. 6, 1.922 2 Sheet-Sheet l Nov. 6, 1923. l,4l73,76

R. s. BONILLA LOCK Filed Feb. 6, 1922 2 Sheets-Sheet 2 wwwtoz 5.: DIV/ALA Patented Nov, 6, 1923?.

RALPH S. BONILLA, OF NEVV YORK, N. Y.

LOCK.

Application filed February 6, 1922.

To all whom it may concern:

B it known that I, RALPH S. BONILLA, a citizen of the United States, residing at New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Locks; and

I do declare the following to be a full, clear,

and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in looks and more particularly to those used on doors, the principal object being to provide a novel association of tapered lugs and sockets for tying the lock casing and the strike or keeper together, so as to prevent them from being pried or jimmied apart to release the bolt.

A further object of the invention is to provide for obscuring and protecting one of the attaching screws of the lock casing, by means of a rotary disc or roll-back which is used for operating the bolt, said disc or roll-back, however, being provided with an opening for alinement with another opening in the front of the casing, making the screw accessible for driving or. detachment by authorized persons.

A still further object of the invention is to provide a construction whereby the attaching screws for the strike or keeper are disposed at different angles so as to more securely hold this part to the door frame.

With the foregoing in view, the invention resides in the novel subject matter hereinafter described and claimed, the description being supplemented by the accompanying drawings:

Figure 1 casing with its back plate removed to illustrate the roll-back and associated internal is a perspective view of the lock Serial No. 534,480.

ing with most internal parts removed therefrom.

In the drawings above briefly described,

' the numeral 1 designates a horizontally elongated loclr casing provided with a solid front wall 2 and with a removable back plate 3 secured in place by a screw 41. The plate 8 is somewhat shorter than the casing 1 and is provided with a tongue 5 at one end which is received in a beveled throat 6 at the inner end of the opening 7 which is formed in one end of the lock casing for guiding the bolt 8. The tongue 5 and the single screw 4 effectively hold the back plate 3 in place against suitable lugs 9 in the casing.

At the end of the back plate 8, adjacent the bolt 8, and spaced inwardly from the adjacent end surface of the casing 1, the latter is provided with a lateral flange 10 having screw holes 11, said flange being adapted to be inset in the edge of a door as indicated at 12 in Figure 41. The back of the casing, between the flange 10 and the adjacent end oi said casing is formed with upper and lower tapered sockets 13 which are positioned one above and one below the bolt 8, these sockets being formed in the unusually wide end wall or the casing so that they are completely surrounded by solid metal.

The strike which co-acts with the bolt 8, includes vertical strike plate 1 1 having a bolt-receiving keeper 15 at one vertical edge and provided on its opposite vertical edge with a lateral flange 16 having upper and lower countersunk screw holes 17 and-an intermediate countersunk screw hole 18, the latter being formed through the central portion of the flange 16 which is externally beveled as indicated at 19, toward the plate 14. As will be clear by reference to Figure 1,.the axis of the opening 18 is at right angles with the beveled surface 19, with the result that the screw 20 which passes through this opening in securing the strike to the door frame will be oblique with respect to the screws passing through the openings 17 giving much more holding power than could be otherwise obtained. For additionally securing the strike in place, another oblique attaching screw 21 is passed through an opening 22 in a boss 23 formed on the plate 14 within the keeper 15, said boss having a beveled outer surface at right angles to the axis of the opening 22' at such an angle as to permit the screw 21 to be readily driven through the open end of the keeper 15. The

directiont'akeii" by this screw draws the strike tightly in place and in conjunction with the other screws, holds said strike securely on the door frame.

Above and below the beveled portion 19 of the flange 16 and at the juncture of this flange with the plate 1%, the latter is provided with a pair of lateral tapered lugs 24 whi.ch are adapted for reception in the tapered sockets 13'as shown in dotted lines in Figure 1, when the door 12 is closed. It

will, thusbe seen that there isjno possibility ofi prying or jimmying the lock and the strike apart to release the bolt 8. The tapered. formation of th lugs and sockets, inSllI es that they shall properly engage each other even thoi'igh the door mayv sag or shrink to some extent.

The numerals 25, designate a pair of spring-pressed rods extending inwardly from the bolt 8 and provided with oppositely extending. plates or feet 26 on their inner ends'which co act, with projections 2'? on, a disc or. roll-back 28 which is carried by the "inner end of a suitable knob 29 to be rotated at will',-so, as to cause one or the other of the projections 27 to engage its respective, foot 26; and. thereby retract the bolt 8.] This rollback 28 is formed with an F opening 28 which is adapted as shown in Fig. '4c, to register with an opening 30 in the front of the casingl so that a screw 31 may be passed through them anddriven'through a higi32, to co-a'ct with the screws driven through the open ngs 11, in securing the casing 1 'in place, without any of the'fasteners being visible. When the roll-back 28 is in the position which it assumes when the bolt 8 is locked by means hereinafter described, thcfopening 29. is disposed as seen in Figure-'1 andfis thus out of alinement with the opening 30 so that the screw 31 is inaccessible;

The numeral 33 designates a bushing p assing rotatably through. the back plate 3 and provided on its inner end with a finger 3.4.

which co-racts with one of the platesQG to move saidplate. inwardly and, retract the bolt 8, when said finger is operated: by a key mechanism]mentioned; below. The finger 3 1 isalsdadapted to lie against the. plate 26 to hold it against being retracted. so "that the bolt .8 may be locked in projected position, but this arrangementis shown in. my copending application, Serial No. 4l3361t, filed December 28, 1 920 and hence forms no part of thel present invention. A suitable shaft 35 ,is connected with the bushing 83 and extendsfrom an appropriate barrel36 mounted in the door 12 and containing means operated by a key 3'? for either rotating the shaft and bushing or for locking them against rotation. Here again, the parts and 36 do not constitute features of the pres- V ent invention and it will be understood that any suitable key-controlled mechanism may be employed for operating the linger 34. In fact, in some forms of locks, this finger and its operating. ineansmay be entirely eliminated, depending solely upon the knob 29 and associated parts for retracting the bolt 8 From the foregoing, it will be seen that a comparatively simple, yeta highly eflicient and desirable lock has been provided, particular emphasis being laid upon the nter engaging lugs and sockets 24 and 13 respecf tively, and upon the provision of the openings 28' and 30 for giving access to the screw 81 Since excellent results have been obtained from, the details disclosed, they are by preference followed, but it is to be understood that within the scope of the invention as.

claimed, numerous minor changes may be made.

I claim: l V

1. In combination, a strike plate adapted to be secured to a door frame, said plate havingan integral boltlreeper spaced horizontally from the inner edge offsaid' plate and being also provided with lateralltapered lugs above and below the bolt receivingpor' tion of said keeper; a, bolt carr ying lock casing adapted to besecured to a door with one end extending beyond the edge, thereof, said one end of said casing having laterally opening tapered socketsbetween the bolt andfthe upper and lower edges of the casing,'s'aid sockets being adaptedto snugly receive lugs whereby the casing and strike plate are tied together with the door in? closed position. i I

2. A strike plate provided at one vertical,

edge with a'bolt keeper and providedi'at its other'vertical edge with a lateral flange, the

central portion of said flange being beveled on its outer side toward said strike plate and havinga countersunk screw. hole whose axis is at right angles to thebeveled surface, said 4. A strike plate provided at one vertical] edge with a bolt keeperand provided at its other vertical edge with a lateral flange, the

Ill)

central portion of said flange being beveled on its outer side towards said strike plate and having a countersunk screw hole whose axis is at right angles to the beveled surface.

5. A look casing containing a bolt and means for operating said bolt, the back and front of said casing being formed with a-lined screw holes normally covered by said operating means; said operating means being no formed with an opening registering with the openings in said casing when the bolt is in drawn position, to permit the driving of a screw through said openings.

In testimony whereof I have hereunto set 115 my hand.

RALPH S. BONILLA. 

